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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /2441/CH5/EX5.10 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '2441/CH5/EX5.10')
| -rwxr-xr-x | 2441/CH5/EX5.10/Ex5_10.sce | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/2441/CH5/EX5.10/Ex5_10.sce b/2441/CH5/EX5.10/Ex5_10.sce new file mode 100755 index 000000000..0248833b8 --- /dev/null +++ b/2441/CH5/EX5.10/Ex5_10.sce @@ -0,0 +1,30 @@ +//Example 5.10
+clc;clear;close;
+format('v',7);
+s=poly(0,'s');//for transfer function
+Tg=0.2;//sec///time constant of governing system
+Tt=2;//sec///time constant of turbine
+Gr=1/(1+Tg*s);//Transfer function of governer
+Gt=1/(1+Tt*s);//Transfer function of turbine
+C=1500;//MW
+f=50;//Hz
+R=4;//%////Speed regulation constant
+H=5;//sec////Inertia constant
+delPL=1;//%////change in load
+delf=1;//%////change in frequency
+disp("Part(a)");
+R=R/100*f;//z/p.u.MW
+D=delPL/delf*C/f;//MW/Hz
+D=D/C;//p.u.MW/Hz
+Kp=1/D;//Hz/p.u.MW
+Tp=2*H/f/D;//sec
+Gp=Kp/(1+Tp*s);//Transfer function of power system
+delFs=-Gp/(1+Gr*Gt*Gp/R);
+disp(delFs,"delFs = M/s*");
+disp("Part(b)");
+delf0_by_M=-Kp/(1+Kp/R);//Hz
+delf0=delf/100*f;//Hz
+M=delf0/delf0_by_M;//p.u.MW
+M=M*C;//MW
+disp(M,"Largest step change(MW)");
+//Transfer functions multiplication Gr*Gt*Gp is calculated & it is not possible to show together without calculated as in the book.
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